The symptom appears as grayish-white powdery substance on the surfaces of young leaves, shoots and buds.
Infected leaves may be distorted, and some leaf drop may occur.
Flower buds may fail to open, and those that do may produce poor-quality flowers.
It can occur almost anytime during the growing season when temperatures are mild (70 to 80 °F), and the relative humidity is high at night and low during the day.
It is most severe in shady areas and during cooler periods
Collection and burning of fallen leaves.
Spray with Wettable sulphur 0.3% (or) Carbendazim 0.1% 2-3 sprays at 15 days interval is effective.
Sulphur dust at 25 kg/ha.
Use of sulphur at higher temperature conditions will be phytotoxic.
